Dropped Calls on ISDN 30 (RAI)

Unanswered Question
Apr 20th, 2007

Hello,

Equipment involved:-

Cisco CallManager 4.1.3

H323 Voice Gateway Cisco 2651XM

ISDN30 E1 Circuit.

Yesterday we experienced a spate of about 5 dropped calls to and from external numbers. I have attached the output of a Q931 Debug which shows one of the calls disconnecting due to an RAI Remote Alarm Indication. I have also attached the output from sh controllers and sh Serial interface.

I have posted something similar to this before with the output of the Q931 Translator from CCM but was told it wasn't very useful and to attached a q931 debug instead.

I raised the fault with BT giving them a list of times and numbers involved but they closed the fault off as none found.

Can anybody enlighten me as to where the fault lies here?

Thanks in advance.

I have this problem too.
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Paolo Bevilacqua Fri, 04/20/2007 - 06:29

Hi,

RAI is the method the remote tells you, my circuit is down. Possibly something transitory happened on the circuit. If no dropped calls today and after, you are ok.

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